Headphone



FIG. 1 is a front elevation view showing my new design

FIG. 2 is a rear elevation view thereof;

FIG. 3 is a top plan view thereof;

FIG. 4 is a bottom plan view thereof;

FIG. 5 is a right side elevation view thereof;

FIG. 6 is a left side elevation view thereof; and,

FIG. 7 is a perspective view showing the top, front and right sidesthereof.

I claim the ornamental design for a headphone, as shown and described.